<!DOCTYPE html>
<html lang="en">
  <head>
    <meta charset="UTF-8" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
    <title>Document</title>
  </head>
  <body>
    <script>
      console.log("100", typeof 100); //number
      console.log('"hello"', typeof "hello");
      console.log("true", typeof true);
      console.log("undefined", typeof undefined);
      console.log("100n", typeof 100n);
      console.log(" Symbol()", typeof Symbol());
      console.log(typeof function () {}); //function
      console.log(typeof null); // object
      console.log(typeof []); // object
      console.log(typeof {}); //object
    </script>
  </body>
</html>
